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Air Flow Resistivity (stacking material)
Old 13th May 2019
  #1
Here for the gear
 

Question Air Flow Resistivity (stacking material)

Hi,

Quote:
I have tried to find an answer to my (simple) question;
How does the AFR spec at any given material helps finding the right material to your problem?

I mean if the AFR is measured with a certain thickness. How can you apply that data when you increase the thickness?
In other words does the AFR stays the same?
If not (most likely) how can interpret or make use of the AFR spec when i double the thickness of the material?
Maybe i need to simpify my question.

RockSono Solid (211) has a AFR of 15 kPa.s/m²
But it's available in different thicknesses (45-75-100mm)
Is the AFR the same for 45mm vs. 100mm?

Thanks in advance.

Edit:

Hahaha oh my... i have been browsing for hours to search for materials and i just realize that my question was a ''tad'' stupid. Well i am stupid i think.

...m² is the answer i guess (still not sure tho) :P

Last edited by Kamusica; 13th May 2019 at 05:35 PM.. Reason: omg
Old 13th May 2019
  #2
Lives for gear
Quote:
Originally Posted by Kamusica View Post
Hi,

Is the AFR the same for 45mm vs. 100mm?
Hello,

Yes but the gfr and the thickness are link to the absorption performance.
45 mm at 15000 rayles have less absorption than 100 mm
In bass frequencies And
A low gfr as 5000 doesn't works in bass frequencies at 45 mm but it's great at 450 mm and far better than 15000.
Low is the gfr, big must be the thickness.
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